Tap the blue circles to see an explanation.
$$ \begin{aligned}24x-\frac{16}{4}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}24x - \frac{ 16 : \color{orangered}{ 4 } }{ 4 : \color{orangered}{ 4 }} \xlongequal{ } \\[1 em] & \xlongequal{ }24x-\frac{4}{1} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}24x-4\end{aligned} $$ | |
① | Divide both the top and bottom numbers by $ \color{orangered}{ 4 } $. |
② | Remove 1 from denominator. |